Fitness dumbbell



FIG. 1 is a front top perspective view of the fitness dumbbell of the present invention showing our new design;

FIG. 2 is a top and bottom plan view thereof;

FIG. 3 front and rear elevational view thereof; and,

FIG. 4 is a side elevational view thereof. 

The ornamental design for a fitness dumbbell, as shown and described. 